113721178511 has 2 divisors, whose sum is σ = 113721178512. Its totient is φ = 113721178510.

The previous prime is 113721178481. The next prime is 113721178573. The reversal of 113721178511 is 115871127311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113721178511 - 2³⁴ = 96541309327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113721078511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56860589255 + 56860589256.

It is an arithmetic number, because the mean of its divisors is an integer number (56860589256).

Almost surely, 2^113721178511 is an apocalyptic number.

113721178511 is a deficient number, since it is larger than the sum of its proper divisors (1).

113721178511 is an equidigital number, since it uses as much as digits as its factorization.

113721178511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 38.

The spelling of 113721178511 in words is "one hundred thirteen billion, seven hundred twenty-one million, one hundred seventy-eight thousand, five hundred eleven".